The Potential Perils of Forest Carbon Contracts for Developing Countries: Cases from Africa Journal of Peasant Studies, Vol. 39, No. 2, pp. 551-572 24 Pages Posted: 24 May 2012
Acne in adult women is often hard to treat. One study showed that 80 percent of women prescribed antibiotics for acne receive no benefits from the drugs, Shinkai said. In these cases, the acne may stem from normal hormonal changes, such as those that occur around the menstrual cycle, or from a true hormonal disorder. For many of these women, medications that target hormones, rather than skin bacteria, would provide the most help, Shinkai said.
Acne-Cause. There are different types of acne. The most common acne is the type that develops during the teen years. Puberty causes hormone levels to rise, especially testosterone. These changing hormones cause skin glands to start making more oil (sebum).